Abstract: A machine tool (1, 1?), in particular a drilling and milling machine, comprising a housing (20) having a machine bed (2), together with side walls (3, 4) and doors (5, 6, 7), comprising a fixed, pivotable or rotatable work table (8, 9), and comprising a slide (10), transportable in the y direction, for the reception of a spindle head (11), transportable in the x-z direction, for the reception of tools (12), wherein the front door (5), for the enlargement of the working and loading area (21) in the upward direction, is of transomless configuration, the roof region (13) of the machine (1, 1?) has an automatically operable cover (16), the rear region (22) of the machine (1, 1?) has an integrable automatic pallet changer (14), and the machine (1, 1?) is assigned an automatic tool changer (15).

Abstract: The present invention provides a five-simultaneously-working axis computerized numerical controlling system tooth cutting machine tool for toroidal worms, comprising two parts a body of the machine tool and a controlling cabinet. The body comprises a bed, a spindle box with a spindle, a longitudinal sliding table, a traverse slider, a vertical guideway mounted on the slider and a tailstock, a cutter rest that supports a rotating cutter head is mounted on the vertical guideway. The spindle rotates about A-axis thereof, the table longitudinally slides along Y-axis relative to the bed, the cutter head rotates about B-axis thereof and transversely shifts X-axis as well as the cutter head makes up or down shift along Z-axis of the vertical guideway.

Abstract: A router bit with a position stop is disclosed. The router bit includes a body with a collar extending outwardly from it and a shaft extending outwardly from the collar. At least one cutter blade is mounted to the body and the cutter blade may be used to cut a profile into a workpiece. The collar has a first diameter, the shaft has a second diameter and the first diameter is larger than the second diameter. The collar has a face formed a spaced distance or height from the transition point between the collar and the body. The face rests against the upper surface of a chuck when the shaft is secured in the chuck. This allows the body and hence the cutter blades to be held a predetermined distance above the upper surface of the chuck. A second router bit may be provided to cut a complimentary second profile in a second workpiece.

Abstract: A method for using a drilling device with a rotating tool, a drilling machine and lubrication device. The device includes an intermediate chamber for storage of chips produced during an elementary drilling operation, and a scavenging device capable of generating an airflow scavenging the chips. The elementary drilling operation is performed without activating the scavenging device, and the elementary drilling operation is followed by an airflow scavenging operation of the chips stored in the intermediate storage chamber during the elementary drilling operation.

Abstract: A support structure or sleeve for the spindle of a machine tool consists of a tubular casing, preferably made of sheet steel with a high modulus of elasticity, in contact with a layer of agglomerate obtained by casting inside the casing a mixture formed by a granulate of stone and/or ceramic and/or expanded clay material as well as a synthetic resin of the hardening type, which is subject to cross-linking. The structure thus obtained combines a high vibration damping factor with an excellent mechanical strength and a reduced weight. The structure may also comprise a second casing which is located inside the layer of agglomerate and in contact therewith. The mass of agglomerate may also have, embedded in it, pipes for circulation of a cooling fluid in order to dispose of the heat produced by the spindle during operation.

Abstract: In the method, a tool is tested for an aligning fit or an imbalance in a tool spindle. The tool spindle is set into rotation. A light beam is used to check whether the tool wobbles. The tool spindle and the light beam are moved relative to one another until the light beam impinges on the area covered by the wobbling movement and a received signal generated from the light beam has an intermittent signal path for the first time. The then prevailing relative position between the tool spindle and the light beam is evaluated in respect of a non-aligning fit of the tool or in respect of a tool imbalance.

Abstract: A scuffing device (30) arranged to impart texture to a plastic pallet surface (12) having a plurality of cutting members (34) axially aligned and mounted adjacent each other, the cutting members (34) having radial toothed edges for cutting into and imparting texture to the plastic pallet surface upon rotating engagement therewith. The device further having a shaft upon which the cutting members are mounted for providing rotational movement to the cutting members.

Abstract: A machine tool is provided with: a rotating table apparatus that has a table for holding a workpiece, and that rotates the table based on a drive force that has been input; a processing area for processing the workpiece, the rotating table apparatus being carried into and out from the processing area; and a drive source for inputting the drive force when connected to the rotating table apparatus, the drive source being provided in the processing area such that the drive source can be disconnected from the rotating table apparatus.

Abstract: A key cutting machine having a vacuum port connected to the housing and capable of removeably connecting a vacuum tube thereto so that when the vacuum tube is connected to the vacuum port the vacuum tube is capable of collecting key shavings created during a key cutting operation and, when the vacuum tube is disconnected from vacuum port, the vacuum tube can be used to collect key shavings on or surrounding the key cutting machine. Additional improvements or features of a key cutting machine are also described.

Abstract: The invention relates to a machine tool, in particular to cutting machine tools. The inventive machine tool comprises at least two machining modules provided with at least one spindle with a horizontally oriented axis and at least one clamping module having a tooling surface for at least one part which is horizontally oriented and rotatable around a vertical axis. The clamping module includes structure for a rigid coupling thereof to the machining module. One or several clamping modules and/or machining modules are provided with at least one fictive midplane which is parallel with respect to the spindle axis. The machine tool also includes at least one pallet changing module which is connected to the clamping module asymmetrically with respect to the midplane.

Abstract: A tool for the machining of workpieces is provided with a coolant/lubricant supply and an actuation unit for the activation of supplementary functions of the tool, with an actuation element and an actuation medium circuit. The actuation unit is separated from the coolant/lubricant supply by a separation element. The separation element can be exposed on one side to the coolant/lubricant and on the other to the actuation medium.

Abstract: In a cutting tool arrangement and a tool for chip removing machining, the cutting tool arrangement comprises a tool, fastening arrangement, and a shank. The tool is a one-piece unit. The axial channel is of non-circular cross-section to provide a key grip. An end of the axial channel comprises material at least partly blocking the axial channel.

Abstract: A device for moving objects (4), such as die tools or molds, to and from the table (2) of a press (1) comprises a bar (24) being vertically movable, by means of inflating a bag (10), from a first position in which an upper surface (26) of the bar (24) is located below the upper surface (16) of the table (2) to a second position in which the upper surface (26) of the bar (24) is located above the upper surface (16) of the table (2). The bar (24) is adapted to slide horizontally in its longitudinal direction and is provided with gear teeth (28). A gear wheel (32), engaging the gear teeth (28) of the bar (24), is adapted to move the bar (24) in the horizontal direction along the slot (14) when the bar (24) is in its second position and thus to move an object (4) resting on the upper surface (26) of the bar (24).

Abstract: To provide a machine tool in which a workpiece can be delivered to/from a first and a second spindle headstock without any increase in front/back direction dimension of a machine main body. A second spindle headstock 4 is capable of moving to a position for workpiece delivery to/from a first spindle headstock 3 so as to be close to or to abut on the first spindle headstock 3. When the second spindle headstock 4 is positioned at the workpiece delivery position, a tool post 5 is positioned right under the first spindle headstock 3 so that its cutting point “c” is positioned vertically under an axis “a” of the first and second spindle headstocks 3, 4.

Abstract: The present invention relates to a weight compensating device comprising a carrier and a component which is supported on the carrier and is displaceable particularly in vertical direction by means of a drive, characterized in that the carrier and the component have arranged thereinbetween at least one negative pressure body of a variable length which is connected to a negative pressure source for compensating the weight acting on the component.

Abstract: The invention relates to a power tool such as a router which is provided to perform an operation on a work piece. The tool includes dust extraction apparatus to allow dust and debris to be removed from the location at which the work is performed and part of the extraction apparatus is movable between storage and in-use positions. When said part is moved to a storage position, an alternative dust extraction passage may be fitted in to the port or aperture. Typically, the part which is movable can be telescopically movable or alternatively, can be provided of a flexible member so as to be moved between extended and retracted positions.

Abstract: A wheel chuck includes a plurality of moveable jaws mounted upon a support structure. A plurality of moveable counterweights are mounted upon the support structure with each counterweight opposite from and connected to a corresponding one of the jaws. Upon rotation of the chuck the counterweights develop forces in opposition to centrifugal forces acting upon the jaws.

Abstract: The invention relates to a device for clamping a hollow shaft tool (1) or tool holder provided with a conical hollow shaft (3) in a machine spindle (2) provided with a taper bore (4), especially for use in a machine tool. The device comprises a clamping sleeve (7), axially displaceable inside the machine spindle (2), a tow-rod (8) for displacing the clamping sleeve (7) and being movable between a release position and a clamping position, and a plurality of pincer elements (19) associated with the clamping sleeve (7). The pincer elements are radially displaced by the displacement of the clamping sleeve (7) and have clamping faces (21, 24) to be placed on a conical inner surface (22) of the conical hollow shaft (3) and an opposite surface (26) on the work spindle (1). The aim of the invention is to provide a clamping device of the aforementioned kind wherein the hollow shaft tool is reliably retained in the machine spindle even when the tow-bar is already released.

Abstract: Machine tool having a bed, a table arranged on the bed, a first saddle provided free to travel back and forth, a second saddle supported on the first saddle and provided free to travel side to side, a spindle head provided free to travel perpendicularly on the second saddle, a main spindle situated above the table and by the spindle head supported free to rotate on its center axis, a front cover provided on the front side of the bed and furnished with doors that open and close sideways, and top covers configured with one end sideways shiftably connected to the front side of the first saddle, and with another end connected extensibly/retractably to the top of the front-cover doors, therein being configured for permitting back-and-forth-directed movement of the first saddle.

Abstract: An orbital machining apparatus for producing a workpiece hole with a cutting tool, including: a first actuator for rotating the tool about its longitudinal center axis during the machining of the hole; a second actuator for moving the tool in an axial feed direction substantially parallel to the tool axis; a third actuator for rotating the cutting tool about a principal axis; and a radial offset mechanism. The third actuator includes a rotating drive driven by a motor, a carrier ring connected to and rotated by the drive by two opposed, radial drive pins. The ring performs a radial sliding movement relative to the drive while being rotated thereby. Two opposed, radial carrier guide shafts circumferentially spaced 90° from the drive pins and connecting the ring and an inner cylindrical eccentric body such that the latter may perform a radial sliding movement relative to the ring while being rotated thereby.